Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"truan doi phat snippets" » "truyen doi phat snippets", "quan doi phat snippets", "khuan doi phat snippets", "truan dai phat snippets", "truan dao phat snippets", "truan hoc phat snippets", "truan doi phat slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("truan doi phat snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truan doi phat snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( truan doi phat snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan doi phat snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.